Showing posts with label 240GB. Show all posts
Showing posts with label 240GB. Show all posts

Wednesday, December 19, 2012

Review: PNY XLR8 Pro 240GB

PNY is a name normally associated with Nvidia-based consumer graphics cards, and maybe the odd memory modules. In fact it makes a whole range of memory-based hardware too. It's therefore no surprise to see a range of SSDs in its lineup, from desktop models to enterprise level drives.

The XLR8 branding is used on high performance parts, so it's appropriate that the LSI SandForce SF-2281 equipped XLR8 Pro 240GB carries the same tag.

Three drives make up the range: 120GB, 240GB and the flagship 480GB. A combination of the SF-2281 controller and synchronous NAND is usually a recipe that makes for a really quick drive, and the XLR8 Pro holds up that tradition.

PNY's quoted maximum read/write performance figures for the drive are up to 550MB/s for reads and up 520MB/s for writes. Both figures appear to be bang on the money, as when the drive was tested with the ATTO benchmark it produced figures of 556MB/s and 530MB/s for the reads and writes respectively, making it one of the fastest SandForce drives available.

Even in the more demanding AS SSD benchmark it holds up well, producing scores of 509MB/s and 307MB/s respectively for read/writes in the benchmark's sequential test.

So the headline performance is stunningly quick, but what about getting into the nitty gritty of how the drive handles the everyday task of reading and writing small random files?

Well a quick glance at the AS SSD 4K test results shows the drive copes extremely well, 20MB/s for random reads and 62MB/s for random writes puts it well within the top ten fastest SSDs currently available.

When it comes to real life performance the XLR8 Pro 240GB doesn't hang about either; a 4GB photo took a mere 51 seconds to copy from one folder to another, and it took just five minutes 53 second to copy a 50GB folder of mixed file sizes and types.

Sequential read performance
AS SSD: Megabytes per second: Bigger is better

PNY XLR8 PRO 240GB: 509
INTEL SSD 335 240GB: 484
OCZ VERTEX 4 256GB (V1.5FW): 435

Sequential write performance
AS SSD: Megabytes per second: Bigger is better

PNY XLR8 PRO 240GB: 307
INTEL SSD 335 240GB: 313
OCZ VERTEX 4 256GB (V1.5FW): 477

4K random write performance
AS SSD: Megabytes per second: Bigger is better

PNY XLR8 PRO 240GB: 62
INTEL SSD 335 240GB: 56
OCZ VERTEX 4 256GB (V1.5FW): 57

The drive's capacity is made up of 16 16GB 25nm synchronous Intel NAND modules, of the 3K P/E flavour. These modules are split eight per side of the PCB, with the controller joining them on one side of the board.

Thinking about sticking this in a slimline notebook? Well, you're out of luck. The drive is built on the standard 9mm format so it's just too chunky to fit in a slender chassis.

The drive reviewed was bare - well, it comes with a SATA data cable - the Pro range is available in an installation kit that includes a mounting rack and Acronis True Image HD data migration software.

As you might expect for a drive using 3K P/E NAND, it comes with a three-year warranty. PNY has entered the vicious bear pit that is the SSD market with some pretty aggressive pricing for the Pro range: £90 for the 120GB model, £152 for the 240GB, and £301 for the 480GB drive. That price for the 480GB model shows just how competitive the SSD market has become in the last twelve months.

If you cast your mind back to this time last year, that was the asking price of most of the 240/256GB SSDs available.


View the original article here

Tuesday, December 18, 2012

Review: Intel 335 Series SSD 240GB

The latest addition to Intel's armoury of SSDs is the 335 Series - a competitively priced drive that's aimed at the mainstream market.

Like its little 330 series sibling and its bigger brother, the 520 series, it's based around the LSI SandForce SF-2281 controller, but unlike the other two this one uses Intel's latest 20nm MLC NAND.

At launch the 335 is available only as a 240GB capacity drive. This means Intel must see the 240/256GB area as the sweet spot for consumer SSDs, which, given the state of the consumer SSD market even 18 months ago, shows just how volatile the things have become. More capacities may appear as the production and availability of new NAND modules increases.

Just like the 330 series, the 335 comes in a 9.5mm format only, which is bit of an odd decision as it precludes it being used as a replacement drive in a thin notebook or Ultrabook, which you would think would be its perfect home.

The drive comes with a desktop kit consisting of a drive bay adaptor, SATA data cable and a Molex to SATA power adaptor, but there is no software included. Instead you have to download it all from Intel's website, including the Intel SSD Toolbox utility.

Warranty wise, Intel quotes a MTBF of 1,200,000 hours for the 335, and backs it with a three-year warranty.

Inside the drive, the layout is identical to the 330 and, for that matter, the 520 series. This is no real surprise as most SandForce controlled drives tend to have the same layout on the PCB.

Making up the drive's 240GB capacity are 16 Intel 29F16B08CCMF2 16GB NAND modules. This, the mathematically astute among you will note, adds up to 256GB; the missing 16GB is kept for over provisioning and garbage collection.

The controller sits on one side of the board with eight of these NAND modules while the other side on the PCB contains just the eight remaining modules.

Intel quotes headline performance for the 335 at up to 500MB/s reads and up to 450MB/s writes, which we found pretty conservative. When the drive was tested with the ATTO benchmark it produced read performance of 557MB/s, and for writes a very impressive 530MB/s.

Sequential read performance
AS SSD: Megabytes per second: Bigger is better

INTEL SSD 335 240GB: 484
INTEL SSD 330 180GB: 470
OCZ VERTEX 4 256GB: 435

Sequential write performance
AS SSD: Megabytes per second: Bigger is better

INTEL SSD 335 240GB: 313
INTEL SSD 330 180GB: 197
OCZ VERTEX 4 256GB: 477

4K random read performance
AS SSD: Megabytes per second: Bigger is better

INTEL SSD 335 240GB: 19
INTEL SSD 330 180GB: 19
OCZ VERTEX 4 256GB: 25

4K random write performance
AS SSD: Megabytes per second: Bigger is better

INTEL SSD 335 240GB: 56
INTEL SSD 330 180GB: 60
OCZ VERTEX 4 256GB: 57

As with all SandForce-controlled drives, dealing with compressed data poses the 335 some problems, but it's not as bad as some drives we have seen. That likely shows Intel's hand on the firmware tiller.

Testing the drive with the default incompressible AS SSD benchmark settings, the drive produced performance of 484MB/s reads and 313MB/s writes. Switching to the compressed data test of the benchmark produced a healthy rise in the read figure - 512MB/s - and a rise in the write performance, producing a figure of 494MB/s.

Intel hasn't really made any great strides with the SandForce controller, but the 20nm NAND has given it a bit more of a competitive edge on incompressible data front. Still, it's not going to pip the OCZ Vertex 4 in our wish list of speedy SSDs.


View the original article here

 

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